(a)    Third Party Charters. An amount equal to the Third Party Charter Lease Rate, as defined on Exhibit A, for each Flight Hour (which shall consist of the time between engine start and engine stop rounded to the nearest tenth of an hour) the Aircraft is operated by Manager for Commercial Operations other than Owner Charters.  
(b)    Owner Charters. An amount equal to the Owner Charter Lease Rate, as defined on Exhibit A, for each Flight Hour the Aircraft is operated by Manager for Commercial Operations for the Owner (each such operation an “Owner Charter”. For the avoidance of doubt,   
Owner Initials: \_\_\_        Manager Initials: \_\_\_\_\_